Selective operating mechanism.



.J. H. PILLINGS. SELECTIVE OPERATING M ELHANISM;

APPLICATION FILED JULY I3, 1914.. 1,208,641. Y Patented Dec. 12,1916.

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J. H. PILLINGS.

SELECTIVE OPERATING MECHANISM. 7

APPLICATION FILED JULY 13, 1914.

Patented Dec. 12, 1916.

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APPLICATION FILED 1ULYl3| I914- Patented Dec. 12, 1916. I

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witioow 1.1+. PILLINGS. SELF CTIVE OPERAHNG MECHANISM.

APPLICATION FILED JULY I3, 1914.

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and describedin applications for I UNITED STATES PATENT OFFICE.

JOHN H. PILLINGS, 0F DAYTON, OHIO, ASSIGNOR 0F ONE HALF TO BENJAMIN H. NOYES, OF DAYTON, OHIO.

SELECTIVE OPERATING MECHANISM.

Specification of Letters Patent.

Patented Dec. 12, 1916.

To all whom it may concern.

Be it known that I, Joi-IN I-I. PILLINGS, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented ccrtainnew and useful Improvements in Selective )pcrating Mechanism, of which the followlng is aspecification, reference being had therein to the accompanying drawing.

This invention relates to selective operating mechanism, and it is designed more particularly for use in connection with typewriters, but is capable of application to devices of various kinds'having a plurality of parts to be selectively operated.

The present invention is a modification of, and constitutes in some respects an improvement on, devices for similar purposes shown patents, filed by me Sept. 29th, 1.913, Ser; No. 792,368, and October 10th, 1913, Ser. No. 794,775.

- 1 The object of this invention'is to simplify the construction and operation of the machine and thereby reduce the Weight of the machine, the cost of production and the cost of maintenance.

To this end it is a further object of the invention to provide pneumatically controlled selective mechanism for establishing a positive connection between av driven actuating member and a selected part to be operated.

Int-he accompanying, drawings Figure 1 is a side elevation of the mechanism emho'dyinp my inventiontl ig. 2 is a longitudinal sectional view taken through the upper portion of the device and showing the connection with the operative parts of the typewriter: Fig. 3 is a top plan view of the mechanism shown in Fig. 2; Fig. 4 is a rear elevation. partly in scction, of the pnciu'natic selective mechanism: Fin. 5 is a detail view 'of the carriage return mechanism: Fig. 6 is a.'pla n view of the tabulating' attachment; Fim 7 is a side cle 'ation of the sam and Fig. 8 is a. detail view of the trip for the carriage return mechanism.

.In. these drawings I have illustrated one embodiment of my invention and have shown the samc as mounted on a main frame l which is preferably in the: form of a cabi net. which incloscs the operative parts of the. mechanism. Mountcd upon this main frame is a typcv riter 2; of ordinary construction, or any other device which is to be operated. with the usual type ha rs 4 which constitute the parts to be operated, and these type bars are connecter. with the key bars 5 in the usual manner.

In carrying out my invention I provide an actuating member which is positively driven, preferably continuously, and is adapted to be connected with any one of the operable parts, or type bars. of the typewriter. In connection with this actuating member I provide a pneumatically controlled selective mechanism to operatively connect the actuating mcmber with a selected one of said operable parts. Prefe'ably the se lective mechanisn'i comprises a series of selecting devices adapted to be moved into operative relation with the actuating member to establish the desired connection. These selecting devices are all connected in the present form of the invention, With suction devices which serve to hold said selecting devices in their inoperative positions. This suction is prefcrably controlled by a perforated web of paper, or the like, moving over all apcrturcd bar. When one of the apertures in'the web of paper is brought into alincmcnt with one oi the apertures in the bar. the sru'tion which is holding aparticular one of said selecting devices in its inoperative position is relieved and this device is permitted to move into position with relation to the actuating: mem her, thcrcby establishin a positive connection between the actuating mcmbcr and a selected one oi the parts to bc operated. this particular part to be operated correspondinc to thc location oi the apcrture in the wcb of papcr.

This opcralion can bc curricd out by various mcchanismra and it will lit-understood that thc mcchauism which I havc illustrated and will hcrcinaitcr describe, has been chi-iscu for the purpose of illustration only. In this mcchanism the actuating member compriscs a single bar (3 cxtcndingl trans-- vcrscly of the machine. uiouutcd at itsends in suitable guidcnavs 7 and connected at its ends with two connecting rods 8, to the uppcr ends of which arc. scoured eccentric straps 9 These straps extcnd about eccentrics- ](1 rigidly secured to a shaft linear the opposite sides of thc main r'rame' 1, which shaft mav be rotated in any suitable manner its operative This typewriter is provided and, when rotated, will impart a vertical replunger-s have been moved outward for a. ciprocatory movement to the actuating me|n' portion of the length of the uideways the her or bar 6. In the present instance the selecting devices will be broug it into perashaft 1 1 is driven from a motor 26 hymeans tive re ation with the actuutin member. 5 of a belt 36, extending about a pulley 37 on Suitable means are provided whic 1 normally one end of the shaft 11. Means are protend to move the plungers outward and,convidcd for establishing operative connections sequently, to move the selecting devices tobctween the actuating member 6 and the sevward their outer positions. This means as oral parts to be operated, to cause these parts here shown comprises springs confined n to be operated by tlie'v reciprocation of the between the respectiv'e lungers and the ends bar. As here shown these connections are of their guideways. he plungers are held established by means of connecting devices, normally in their fully retracted poeitionsby which, in the present instance, are in the means of suction devices, and, in the present form of levers 12 fulcrumed between their instance, I have shown the several guide- 5 ends upon a shaft or rod 13, mounted in ways 19 formed in-a single bar 21, extendbrackets 14, carried by the main frame. The 111;; transversely to the machine and having connecting members or levers are fulcrumed a longitudinal chamber 22 which constitutes at a point nearer the rear ends than the front a vacuum chamber and is connected with the ends thereof, and the-front ends are conseveral cylindrical guideways by means of 20 nected by means of rods or links 15 with the apertures or conduits 23, and is connected by key bars 5. These links may be of any suitmeans of a tube 24 with an air pump 25, able connection, but are preferably of the of any suitable construction, which is o construction and arrangement shown in the (muted from the motor 26 which driv a above mentioned applications and need not shaft 11. The suction created by this pump be hcre piu'ticularly described. Suffice it to in the chamber 22 is sullicientio' hold the say that the arrangement is such-that the key several plungcrs in their retracted positions bar is caused to more downward with the against the tension of their springs. forward end of the connecting me her To permit the plungers to be moved outwith which it is associated and that the onward by their springs I have provided each 30 nccting member is automatically feturned to of the cylindrical guideways 19 with a reits n'rxuuil or elevated position. thereby perlief aperture or port 2-7 which extends mitting the key bar to return to its normal through the outer wall of the bar 21. The

position. The rear ends of the several ponrelief ports 27 for the several cylindrical necting members 12 are arranged directly guideways are preferably arranged in alineabove the actuating member (i but are spaced ment longitudinally of the bar 21 and the away from this member such a distance that adjacent face of this bar is shaped to'fohn they will not be engaged thereby, when the a bearing surface over which travels a web actuating member is rcciprocated. In order f paper 28, or other suitable material,

t ozq'tabljsh an operative connection between which serves when in contact with the bear- 40 the actuating bar 6 and a selected one of ing surface of the bar to close the apertures 105 the connecting members 12, [have provided and permit the suction in the chamber 22 a pneulnatically controlled selective 'mechato hold the plunger-s seated. This web of nism, comprising a series of selecting devices paper is provided with a )ertures so aror fingers 16 mounted for lengthwise moveranged that as the web is a vanced the sevment to bring the same into operative releoral apertures will be brought snccessiyelv 11f tion with the actuating member, and for verinto alincment with the corresponding ports tical movement to permit the same to move 27. Each aperture,tlms connects a relief with the actuating member when engaged port with the atmosphere, relieves the sucthcrcby. There is one of these selecting detion on tbat-paiticular plunger and permits to vices or fingers 16 for each of the connecting the same to be operated by its spring, there: 111

niembers'or levers 12. and conseipiently, there by moving the selecting device into operais one selecting device for eaci'part to be. tire relation with the actuating member 6 operated. As hcrc shown, the selecting do and establishing a positive connection hevices are in the form of flat bars arranged tween the actuating member and the paron their edges and supported in a slotted ticular part to bc'opcrated which com guide bar 17, which serves to guide them in sponds with the position of the aperture in their movements and to space them apart. the web which has registered with the relief Theselecting devices are pivotally connec (1 port 27. The apertures are formed in the at their rearends with plungers 18 whic 3 web in any suitable manner but aregso arare slidably mounted in cylindrical guideranged that they will register successively ways 19 the relation between the plunger-s with the relief ports 27 and will operate said and the selecting. devices being such that relief ports in such a sequence as to cause the when the plunger-s are fully seated in their parts to be operated or type bars tolbe lie-- guideways the selecting devices will be in tuated in the order necessary to prodltce, the-- as their inoperative positions. But when the desired results. The web of paper 2 may Si .guide roller 35 is preferably the locking device 39 before be supported and actuated in any suitaiiile man-net, and, in the 1i i"escnt instance, i have shown it as passing about a feed roller 29 which supports the same above the bar 21 and is provided with teeth 30 which register with openings 31 along the edges of the web of paper and serve to feed the same forward and to hold the same against lateral displacement. The roller 29 may be driven in any suitable manner, but, in the present instance, it is mounted on a shaft 32 and is driven fron'l a shaft 33 by \vorm gearing 34, the shaft 33 being geared to the shaft 11. A provided on that side' of the bar 21 opposite the roller 29. and the two rollers are so arranged as to hold the web of paper firmly against the bearing surface of the causing it to close the relief ports. The suction through the reiief ports will also assist in holding the paper firmly in engagement with the bar and will cause the same to effectually close the ports.

I have alsoprr' idcd means to lock the several. plungcrs ae'aii t outward movement when the suction t. ercon is relieved. To aecomplish this each of the selecting devices is provided in its lower edge with a notch 38 adapted to receivea iOC- :ing member or plate 39, which is mounted on a rod 40, extending transversely to the several selecting devices and rotatably supported by the main frame. Secured to the rod 4.0 is an arm 41 to which is secured the upper end of a piston rod 42, the lower end of which is connected with a piston 43, mounted in a cylinder 44: and held normally in its elevated position by a spring 45. This cylinder connected by means of a tube 46 with the suction device 25 so that when the mechanism is in operation suction will be exerted on the piston 4l3 and the tension of the spring 45 is such that the spring will be compressed by the suction; and the locking plate 39 moved into and heldin its inoperative position. Preferably the spring 45 has a greater tension than the sp in-gs 20 of the flrmgers, and consequently, when the suction is decreased the spring 45 will actuate its piston, and, consequently, the springs 20 will actuate their plungers. Thus the lo .l;- ing device operates before the plungers are released and there is no possibility of these plungers being displaced by the expansion of their springs after the motor has stopped. Likewise, when the apparatus is started the suction, as it gradually increases. will first become sufficient to retain the plungers in their retracted positions, and subsequently, wilt-actuate the piston 43 to move the locking'device into its inoperative position.

I' have found it desirable, however, to provide a positive'control for the locking cylin der 44. To this end I have provided the cylinder" 44 with. a positively controlled the valve.

guide bar, therebygrooved collar 51 to receive operative relation to control its communication with the at-- mosphcre. When this valve is opened the pressure in .the cylinder is instantly relieved and the piston is permitted to move down more quickly than would be the case if the relief was through the tube 46. l/Vhen this valve is closed the suction acts on the piston 43 the same as it would in the absence of The valve may be operated'in any suitable manner, but preferably it is connected with the he on the key board, 30

which controls the operation of the m-ech'a nism. -This key may be connected with a switch in substantially the manner as shown and described in my application 794,775,

above mentioned, and is further connected with the valve 63 by a system of levers and rods as indicated at 66, the arrangement being such that when the starting .key is actuated to start the motor the valve 63 will be seated, and to break the circuit'and stopthe motor the valve will beunseated and the pressure in the locking cylinder relieved.

The carriage return is accomplished in somewhat the same manner as it is in the applications above mentioned, but the driving. shaft is arranged lengthwise of the machine on the outside of the frame, and constitutes in the present arrangement, the same shaft, 33, that drives the roller secured thereto a clutch member 47. Mounted in bearings .48 is a short shaft 49 arranged in alinement with the shaft 33, and having rigidly secured to that cndthereof adjacent to the clutch member 47, 50 adapted to cooperate with the clutch member 47 to connect together the shafts 33 and 49. The shaft 49 has at one end. a the ends of a yoke 52, which is' of a vertical shaft 53, journaled in bearings and having at its upper end a rock arm 'Mounted on the shaft 53 is a spring 56 which tends to move the shaft -19 in-a diwhen the key is actuated 29, and has rigidly 1% a clutch member secured to the lower end rection to bring the two clutch members into v and thus connect the two shafts. A. suitable locking device-is ro vided to retain the clutch members in their disconnected positions, and, as here shown, this device comprises finger 57 pivotally mounted on the frame near the lower bearing 54 and adapted; to engage a keeper 58 connected with the shaft, and, in the present instance, secured to the lower arm of the the latch arm 57 is a second arm 51) to which is connected a link (l0 corresponding to the links 15 which connect the actiiating device with the key bars. This link is connected with the actuating device in the same mana latch. consisting of a yoke 52. Conn ted with Mounted on the shaft 49 and rotating there with is a (lrum'61 upon which is wound a tape (31 which is connected at its upper end withthe typewriter carriage. Consei'piently, as soon as the latch is released the clutch members are positively engaged, the tape wound upon the drumand the carriage returned to its initial position. As the carriage approaches its initial position astop mounted thereon, as shown at 55, engages the rock arm 55 of the shaft 53, moves the shaft 49 in a direction to disconnect the clutch members and to again cause the latch member 57, which is spring-actruited, to en gage its keeper and lock the clutch members in their disconnected positions. Connected With the drum 61 is a weight 67 which tends to rotate the drum and to wind up the tape when the clutch members are disconnected, and thus to take up the slack in the tape.

In order to use the automatic operating mechanism in connection with a tabulator on a typewriting machine, it is necessary that a specieal device be provided to hold the tabulator' key down until the carriage. has moved the desired distance. lVhen operated by hand this key is naturally held down long enough to permit of the movement of the carriage, but the automatic operation is so rapid that it is necessary to provide this auxiliary-device. In Figs.- 6 and 7 the tabulator frame is shown at ()8 and the tripping stops at 69. These parts are of ordinary construction and operation and need not be described in detail. In conncction with these devices I have provided a bracket 70 on which is mounted an arm 71 extending through the tabnlator frame 68 and hav1 ng.mou nted' thereon a springactuated d 72 which normally bears against the side of a plate or bar 73 secured to the tabulator frame. When the tabulator frame is operated, this dog, engages back of the plate 73 and thus locks the plate and the frame in their retracted'positions until the carriage has completed its movement.

The operation of the mechanism will be readily understood from the description of the operation of the several parts thereof, and it will be apparent that when a record has been made on a web of paper in any suitablemanner and this web mounted in the machine, that the type bars will be caused to move in the roper sequence to typewrite the matter which has been placed upon the paper record, and that this matter canbe rewritten as often as is desired. It is possible :to quickly remove one record and substitute another by simply removing the roller 32, it being detachably connected with its trunnions The record which has been removed can be rolled into a small. compass and filed where it will be readily accessible when it is again desired to typewrite the same matter. .1 t will be noted that the mechanism is very simple in its construction and in its operation, that it comprises a "comparatively small number of parts and that the operation oi the type bars is accomplished by a positive connection with the actuating member, the pneumatic mecha-- nism serving only to establish a connection lJPI-WCClttllQ actuating n'iember and the type bars. This not only makes it possible to operate the machine witlra small suction apparatus, but it does away with the uncertainty of a sueiion-operated. actuating de vice.

\Vhile l have shown and described one enilmdinient of my inventiiini, it will be understood that this has been chosen for the purpose of illustration only, and that I do not desire to be limited to the details there of. as obvious modifications will occur to one skilled in the art.

Ilaving thus fully descr bed my inved tion, what 1 claim as new and desire to secure by Letters Patent, is:-

1. In an operating mechanism of the character described. the cei'nbiinition, with an actuating ilrvist'-"-- and a plurality of parts to be actuated, said parts being normally disconnected from said actuating device, of-selooting devices movable into positions to connect said actuating device with selected parts to be operated, a series of pneumatic operating devices for said selecting devices comprising air -haml' ers, movable members operatively connected with the respective selecting iilevircs, an air pump connected with said chambers and acting on said movable members to move the same in one direction, and means to move said movable mem bore in the other c lirection, said chambers having individual controlling ports leading directly to the atmosphere and adapted to be opened and closed to control the operation of the selecting device.

2. In an operating mechanism of the charactor described, the combination with an actuating member and a plurality of parts to be actuated, said parts being normally disronneetiul from said actuating member, of selecting; devices movable into positions to connect said actuating member with se; Ieeted pa rts to be operated. a series of cylinders arranged adjacent to said selecting devices, plungers mounted in said cylinders and connected with the respective selecting devices, springs tending to move said plun gers in one direction and .an air pump conne ted with said cylinders to move said plungers in the other direction, each cylinder having a relief port adapted to be tion between said actuating device and the respective parts to beoperated, springs to move said plungers In one direction and means to control said relief ports.

4:. In an operating mechanism of the character described, the combination with an actuating member and a plurality of parts to be actuated, said parts being normally disconnected from said actuating member, of selective mechanism comprising a bar arranged adjacent to said actuating member and having a series of cylinders formed therein and also having a longitudinal chamber connected with each of said cylinders, each of said cylinders having a relief port, plungers mounted in the several cylinders and selecting devices connected with the sev eral plungers and movable to establish operative connections between said actuating member and the respective parts to be actuated.

In an operating mechanism of thechan acter described, the combination with an actuating memberand a plurality of parts to be actuated, said parts being normally disconnected from said actuating member, of selective mechanism comprising a bar arranged adjacent to said actuating member and having a series of cylinders formed therein and also having a chamber connected with each of said cylinders, each of said cylinders having a relief port, plunger-s mounted in the several cylinders and selecting devices connected with the several plungers and movable to establish operative connections between said actuating member and the respective parts to be actuated, and means to movably support a perl oratwl web of paper in operative relation to Said rilicf ports.

L An operating mechanism of the character described. comprising an actuating device, selecting devices to opcratively connect said actuating device with a selected one of a. plurality of parts to be opera ted, means to move the respective selecting devices in a direction to establish such aconnection, and a suction ay'iparatus connected with the respective selecting devices and normally acting thereon to move the same in the other direction and to interrupt such. a connection, said suction apparatus comprising a separate air chamber for each selecting device, each {111? chamber having adapted to be opened and closed to control the movement of its selecting devlce.

7. An operating mechan1sm, of the character described, comprising an actuating device, selecting devices to operativelyfconnect said actuating device with a selected one of a plurality of parts to be operated, a series of pneumatic operating devices for said selecting devices 'comprising movable members operatively connected With the respective selecting devices, suction apparatus connected with said chambers and acting on said movable members to move the same in one direction, means to move said movable members in the other direction when the suction thereon is relieved, said air chamber having individual relief ports leading directly to the atmosphere and arranged to be normally closed by a perforated Web passing over the same, and to be opened by the perforations in said Web to relieve the suction in the respective chambers and permit said movable members to be moved in said other direction.

8. An operating mechanism of the character described, comprising an actuating member, means to impart movement to said actuating member, connecting devices movably mounted adjacent to and out of the tively connected With the respective parts to be operated, selecting devices movable into positions to connect said actuating path of said actuating member and opera member-With selected connectingdevices, a.

series of cylinders arranged adjacent to'said selecting devices, plungers mounted'lnsald cyhnders'and connected with the said plungers in one direction and an air pump connected with said cylinders to move said plungcrs in the other direction, each cylinder having a relief port adapted to be opened, and closed to control the action of said air pump on the piston in that cylinder.

9. An operating mechanism of the'chan acter described, comprising an actuating member, in runs to impart movement tosaid actuating member, connecting devices mov ably mounted adjacent to and out of the path of said actuating member tively connected with the respective parts to be operated, selecting devices movable into operative relation with said actuating member to connect the same with selected connecting devices, a. bar having a. series of cylinders, plungers mounted in the several cyl-' indcrs and connected respectively with said selecting devices, pneumatic mechanism connected with said cylinders, each of said cylinders having a relief port and means to antomatically open and close said relief ports respective selecting devices, springs tending to move,

and operav a relief port leading directly to the atmosphere and air chambers,

' tively connected to controlthe action 6f said "pneumatic.

mechanism.

10. An operating mechanism of the character described, comprising an actuating member, means to impart movement to said actuating member,

ably mounted adjacent to and out of the.

cylinders, each connected with the suction abl mounted adjacent to and out of the pat of said actuating member and operatively connected with the respective parts apparatus and each having a relief port,

plungers mounted in the several cylinders,

selecting devices connected with the res ective plungers, gers in one directloniand means to control springs to move said' p unsaid relief ports.

4 11. An operating mechanismof the charactcr described, comprlsing anactuating member, means to 1mpart movement to sald actuating member, connecting devices movto be operated,and selective mechanism in ,cluding a plurality of cylinders, a. suction eac of said cylinders having a relief port adapted to be opened and closed by a perforated web of aper, the relief ports for the several cylin ers being arranged in alinement, ,plungers mounted in the respective cylinders, and selecting devices connected with the respective plungers. 12. An operating mechanism of the character described, comprising an actuating member, means to impart movement to said aotuatingmember, connecting devices movably'mounted adjacent ,to and out of the path of said actuating member and operati've'ly connected with the'respective parts i to be operated, .selective mechanism comprising a bar extending parallel with said actuating member and having a series of cylinders formed therein, and also having'a longitudinal chamber connected with each of said cylinders, each of said cylinders having a relief ort, plunger-s mounted in the severalcylin ers, and selecting devices con nected with the several plungers and movable into operative relation with said actuating member to connect the same with se:

lected ones of said connecting devices.

13. An operating mechanism of the character described, comprising an actuating member, means to impart movement to said actuating member, connecting devices movably mounted adjacent to and out of the V path of said actuating member and operatively connected "with the respective parts to be operated, selective mechanism comprising a barextending parallel with said actuating member and havin a series of cylinders formed therein, an also having a ongituaratus connected with said cylinders,

dinal chamber connected with each of said l cylinders, each of said cylinders having a relief port, plungers mounted, in the several. cylinders, and selecting devices; connected with the several plungersand movable into operative relation with said actuating member to connect-the same with selected ones of'said connecting devices, and means to movably support a perforated web of'paper in operative relation to said relief ports.

14. An operating mechanism of the character described, comprising an actuating member, means to impart movement to said actuating member, connecting devices movably mounted adjacent to and out of the path of said actuating member and opera tively connected with the respective parts to be operated, and selective mechanism including a bar having a series oftransverse cylinders formed therein and having a longitudinal chamber communicating with each of said cylinders, each of said cylinders having a relief port, plungers mounted in the respective cylinders, springs confined between said plungers and the walls of said cylinders to move the plungers outward,'and selecting devices. v 15. An operating mechanism of the character described, comprising an actuating device, selecting devices to operatively connect said actuating device with a selected one of a plurality of p'artsto be operated, a suction apparatus comprising a plurality of air chambers, an air conduit communicating with each of said chambers and adapted to we be connected with an air pump, movable members operativel connected with the respective selecting evices and arranged to be acted upon by the suction in the respec: tive chambers to move said selecting devices 195 in one direction, and means to cause said selecting devices to be moved in the other direction when said suction is relieved, said air chambers having individual relief ports arranged to be opened and closed by an ap 1m ertured web to'control' the movements of said selecting devices. 16. 'An operatin mechanism of the character described, comprising an actuating device, selecting devices to operatively connect 1115 said actuating device with a selected one of a plurality of parts to be operated, a suction apparatus comprising a member having a plurality of air chambers and also having .a longitudinally extending conduit commu- 12a nicatin with each of said chambers and adapte for connection with an air pump, movable members operatively connected with the'respectiveselecting devices and arranged to be acted upon'by the suction in the re- 'spective chambers'toGnove said selecting devices in'one dir ion and means to cause said selecting ,devices to be 'moved in'the other direction when said suction isrelieved, individual relief ports formed in mcm- 18c at said selecting Iconnccted from said her for the respective air chambers and having their outer ends arranged in the surface of said member to be opened and closed b) an .apertured web to control the movements devices.

17. An operating mechanism of the character described, comprising an actuating niember, devices to connect said actnati'na, member with the respect-iv. parts to he. operated, said connecting devices being normally disconnected from said actuating member, selecting devices movable into operative relation \vithsaid actuating member to es tablish a connection betwecn't'he same and selected "connecting devices, means to automatically cause the operation of said selecting devices and means to lock said selecting devices against movement into operative positions.

18. An operatingmechanism of the character described. comprising an actnating mem- 'ber, devices to connect said actuating member with the respective parts to said connecting devices being normally disconnected from said actuating member, selooting devices movable into and out-of operative relation with said actuating memher to establish a connection between the same and selected connecting devices, pneumatic devices to control the movement of said selecting devices. and a pneumatically operated lock to prevent the movement of said selecting devices toward their operative positions.

19. An operating mechanism of the character described. comprising an actuating. member, devices to connect said actuating memher with the rcspect1ve parts to be operated, said actuating member. selecting devices movable into and out of operative relation with said actuating member to establish a connection between the some and selected conncctimc devices, pneumatic devices to control the. operation of said solooting devices, a loclv to prevent the. movement of said selecting devices toward their operative positions. and pneumatic means to control the operation of said lock in timed relation to thdoporation of the first-mom tioned pneumatic devices.

n operating, mechanism of thc'eha rac tor described.comprising an actuating mom-- her, a connecting device to connect said ac tuating member with a part to be operated. said connecting device being normally disconnected from said actuating member. a so looting device to establish an opera-dive councetion between said actuating member and said connecting device. a cylinder. a plunger seated in said cylinder and connected with said selecting device. an air pump connected with said cylinder to create a suctiontherein to hold said plunger aa ainsl imtward movement, a lock movable into a position to probe operated,

connecting i'lerices'being normally disvent the outward movement of said )lunger, a second cylinder, :1 plunger monntec in said second cylinder and connected with said locl .'saic second'cylimler being-.3 also nected with said air pump tion in said cylinder \viii hoid said lock in its inoperative position and said lockwill be permitted to movefiwhen said suction becomes insuflicient to hold said first-mentioned planger against movement.-

21. An operating mechanism of the character described. comprising an actuating memher, a. connecting device to connect said actuating member with a part to be operated, said connecting device being normally disconnected from said actuating member,..a selectin device to establish an operative connection between said actuating member and said connecting device. suction apparatus to control the movement of saidselect ing device, and comprising a plunger, a lock to control the movement of said plunger, :1

second suction apparatus to control the move- 'ment of said lock,

with a typewriter, parts, an actuating whereby the suc-- plurality of connecting levers pivotally supported between their ends on a common axis and connected with the respective parts to be operated. said connecting devices being normally disconnected from said actuating devices, of a plurality of selooting members mounted for movement into positions to connect selected onesof said connecting devices with said actuating member and pneumatic-means to control the movement of said selecting devices. said means having a plurality of air chambers, an air pump connected with said chambers to create snction therein. members-connected with said selecting devices and arranged to be acted anon bvthe suction within the respeotive chambers to move said seleeting-mombars in one d rection. said air chambers having individual relief ports arranged to be controlled by a perforated web, nd means for moving said selecting: devices in the other direction when said suction is relieved.

23. The combination with a typewriter, having parts to be op rated. an actuating member. means for im artingconstant r.- eiprceatm v movement to said'aetuatin n eml er and connecting levers connected with the respective parts to be. operated and each having one end extending above and beyond the path of movenn-nt ofsa'id actuating: member. of selecting mem ers movable into the path of said actuating member to bridge the space between the same and the selected connecting lever and to cause said lever to be actuated by the movement of said actuating member, a member having a plurality of air chambers and also having a longitudinal conduit communicating with each of saidchambers and adapted to be connected with an air pump, relief ports formed iii said member to connect the respective chambers with the atmosphere, said ports being so arranged in the surface of said member that they may be controlled by a perforated web, devices connected with the respective actuating members and arranged to be acted upon by the suction within the respective air chambers to move said selecting members in one direction, and means to cause said selecting members to be moved in the 15 other direction when the suction in said. chambers is relieved.

In testimony whereof, I aflix my signature in presence of two Witnesses JOHN H. .PILLING S.

Witnesses H. L. HAMMAKER, F. W. SGIIAEFER. 

